89211047 has 4 divisors (see below), whose sum is σ = 92287320. Its totient is φ = 86134776.

The previous prime is 89211013. The next prime is 89211049. The reversal of 89211047 is 74011298.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89211047 - 2¹⁴ = 89194663 is a prime.

It is a super-2 number, since 2×89211047² = 15917221813672418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89211049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538093 + ... + 1538150.

It is an arithmetic number, because the mean of its divisors is an integer number (23071830).

Almost surely, 2^89211047 is an apocalyptic number.

89211047 is a deficient number, since it is larger than the sum of its proper divisors (3076273).

89211047 is a wasteful number, since it uses less digits than its factorization.

89211047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076272.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 89211047 is about 9445.1599774699. The cubic root of 89211047 is about 446.8271414801.

The spelling of 89211047 in words is "eighty-nine million, two hundred eleven thousand, forty-seven".